## Welcome to H3 Maths

Blog Support for Growing Mathematicians

## Posts tagged with discovery

### An ancient tablet that demonstrates undoubted genius

August25

For nearly 100 years, the mysterious tablet above (no, it’s not an iPad) has been referred to as Plimpton 322. It was first discovered in Iraq in the early 1900s by Edgar Banks, the American archaeologist on which the character Indiana Jones is thought to have been largely based. Now researchers from the University of […]

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### Mathematically, the Time Machine is possible!

May26

Physicists have come up with what they claim is a mathematical model of a theoretical “time machine” – a box that can move backwards and forwards through time and space. The trick, they say, is to use the curvature of space-time in the Universe to bend time into a circle for hypothetical passengers sitting in […]

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#### Post Support

10 x 9 x 8 + (7 + 6) x 5 x 4 x (3 + 2) x 1 = 2020

NCEA Level 2 Algebra Problem. Using the information given, the shaded area = 9, that is:
y(y-8) = 9 –> y.y – 8y – 9 =0
–> (y-9)(y+1) = 0, therefore y = 9 (can’t have a distance of – 1 for the other solution for y)
Using the top and bottom of the rectangle,
x = (y-8)(y+2) = (9-8)(9+2) = 11
but, the left side = (x-4) = 11-4 = 7, but rhs = y+? = 9+?, which is greater than the value of the opp. side??
[I think that the left had side was a mistake and should have read (x+4)?]